<template>
	<div class="chat-box" @click="closeRefBox()" @mousemove="readedMessage()">
		<el-container>
			<el-header height="60px">
				<span>{{ title }}</span>
				<span title="群聊信息" v-show="this.chat.type == 'GROUP'" class="btn-side el-icon-more"
					@click="showSide = !showSide"></span>
			</el-header>
			<el-main style="padding: 0;">
				<el-container>
					<el-container class="content-box">
						<el-main class="im-chat-main" id="chatScrollBox" @scroll="onScroll">
							<div class="im-chat-box">
								<ul>
									<li v-for="(msgInfo, idx) in chat.messages" :key="idx">
										<chat-message-item v-show="idx >= showMinIdx" :mine="msgInfo.sendId == mine.id"
											:headImage="headImage(msgInfo)" :showName="showName(msgInfo)" :msgInfo="msgInfo"
											:groupMembers="groupMembers" @delete="deleteMessage" @recall="recallMessage">
										</chat-message-item>
									</li>
								</ul>
							</div>
						</el-main>
						<el-footer height="240px" class="im-chat-footer">
							<div class="chat-tool-bar">
								<div title="表情" class="icon iconfont icon-biaoqing" ref="emotion"
									@click.stop="showEmotionBox()">
								</div>
								<div title="发送图片">
									<file-upload :action="'/image/upload'" :maxSize="5 * 1024 * 1024"
										:fileTypes="['image/jpeg', 'image/png', 'image/jpg', 'image/webp', 'image/gif']"
										@before="onImageBefore" @success="onImageSuccess" @fail="onImageFail">
										<i class="el-icon-picture-outline"></i>
									</file-upload>
								</div>
								<div title="发送文件">
									<file-upload :action="'/file/upload'" :maxSize="10 * 1024 * 1024" @before="onFileBefore"
										@success="onFileSuccess" @fail="onFileFail">
										<i class="el-icon-wallet"></i>
									</file-upload>
								</div>
								<div title="回执消息" v-show="chat.type == 'GROUP'" class="icon iconfont icon-receipt"
									:class="isReceipt ? 'chat-tool-active' : ''" @click="onSwitchReceipt">
								</div>
								<div title="发送语音" class="el-icon-microphone" @click="showVoiceBox()">
								</div>
								<div title="视频聊天" v-show="chat.type == 'PRIVATE'" class="el-icon-phone-outline"
									@click="showVideoBox()">
								</div>
								<div title="聊天记录" class="el-icon-chat-dot-round" @click="showHistoryBox()"></div>
							</div>
							<div class="send-content-area">
								<div contenteditable="true" v-show="!sendImageUrl" ref="editBox" class="send-text-area"
									:disabled="lockMessage" @paste.prevent="onEditorPaste"
									@compositionstart="onEditorCompositionStart" @compositionend="onEditorCompositionEnd"
									@input="onEditorInput" :placeholder="isReceipt ? '【回执消息】' : ''" @blur="onEditBoxBlur()"
									@keydown.down="onKeyDown" @keydown.up="onKeyUp" @keydown.enter.prevent="onKeyEnter">x
								</div>

								<div v-show="sendImageUrl" class="send-image-area">
									<div class="send-image-box">
										<img class="send-image" :src="sendImageUrl" />
										<span class="send-image-close el-icon-close" title="删除"
											@click="removeSendImage()"></span>
									</div>
								</div>
								<div class="send-btn-area">
									<el-button type="primary" size="small" @click="sendMessage()">发送</el-button>
								</div>
							</div>
						</el-footer>
					</el-container>
					<el-aside class="chat-group-side-box" width="300px" v-show="showSide">
						<chat-group-side :group="group" :groupMembers="groupMembers" @reload="loadGroup(group.id)">
						</chat-group-side>
					</el-aside>
				</el-container>
			</el-main>
			<emotion ref="emoBox" @emotion="onEmotion"></Emotion>
			<chat-at-box ref="atBox" :ownerId="group.ownerId" :members="groupMembers" :search-text="atSearchText"
				@select="onAtSelect"></chat-at-box>
			<chat-voice :visible="showVoice" @close="closeVoiceBox" @send="onSendVoice"></chat-voice>
			<chat-history :visible="showHistory" :chat="chat" :friend="friend" :group="group" :groupMembers="groupMembers"
				@close="closeHistoryBox"></chat-history>
		</el-container>
	</div>
</template>

<script>
import ChatGroupSide from "./ChatGroupSide.vue";
import ChatMessageItem from "./ChatMessageItem.vue";
import FileUpload from "../common/FileUpload.vue";
import Emotion from "../common/Emotion.vue";
import ChatVoice from "./ChatVoice.vue";
import ChatHistory from "./ChatHistory.vue";
import ChatAtBox from "./ChatAtBox.vue"

export default {
	name: "chatPrivate",
	components: {
		ChatMessageItem,
		FileUpload,
		ChatGroupSide,
		Emotion,
		ChatVoice,
		ChatHistory,
		ChatAtBox
	},
	props: {
		chat: {
			type: Object
		}
	},
	data() {
		return {
			friend: {},
			group: {},
			groupMembers: [],
			sendImageUrl: "",
			sendImageFile: "",
			isReceipt: true,
			showVoice: false, // 是否显示语音录制弹窗
			showSide: false, // 是否显示群聊信息栏
			showHistory: false, // 是否显示历史聊天记录
			lockMessage: false, // 是否锁定发送，
			showMinIdx: 0, // 下标低于showMinIdx的消息不显示，否则页面会很卡
			atSearchText: "",
			focusNode: null, // 缓存光标所在节点
			focusOffset: null, // 缓存光标所在节点位置
			zhLock: false // 解决中文输入法触发英文的情况
		}
	},
	methods: {
		moveChatToTop(){
			let chatIdx = this.$store.getters.findChatIdx(this.chat);
			console.log(chatIdx);
			this.$store.commit("moveTop",chatIdx);
		},
		closeRefBox() {
			this.$refs.emoBox.close();
			this.$refs.atBox.close();
		},
		onKeyDown() {
			if (this.$refs.atBox.show) {
				this.$refs.atBox.moveDown()
			}
		},
		onKeyUp() {
			if (this.$refs.atBox.show) {
				this.$refs.atBox.moveUp()
			}
		},
		onKeyEnter() {
			if (this.$refs.atBox.show) {
				// 键盘操作不会自动修正焦点，需要手动修正,原因不详
				this.focusOffset += this.atSearchText.length;
				this.$refs.atBox.select();
			} else {
				this.sendMessage();
			}
		},
		onEditBoxBlur() {
			let selection = window.getSelection()
			// 记录光标位置(点击emoji时)
			this.focusNode = selection.focusNode;
			this.focusOffset = selection.focusOffset;
		},
		onEditorInput(e) {
			// 如果触发 @
			if (this.chat.type == "GROUP" && !this.zhLock) {
				if (e.data == '@') {
					// 打开选择弹窗
					this.showAtBox(e);
				} else {
					let selection = window.getSelection()
					let range = selection.getRangeAt(0)
					this.focusNode = selection.focusNode;
					// 截取@后面的名称作为过滤条件
					let stIdx = this.focusNode.textContent.lastIndexOf('@');
					this.atSearchText = this.focusNode.textContent.substring(stIdx + 1);
				}
			}

		},
		onEditorCompositionStart() {
			this.zhLock = true;
		},
		onEditorCompositionEnd(e) {
			this.zhLock = false;
			this.onEditorInput(e);
		},
		showAtBox(e) {
			this.atSearchText = "";
			let selection = window.getSelection()
			let range = selection.getRangeAt(0)
			// 记录光标所在位置
			this.focusNode = selection.focusNode;
			this.focusOffset = selection.focusOffset;
			// 光标所在坐标
			let pos = range.getBoundingClientRect();
			this.$refs.atBox.open({
				x: pos.x,
				y: pos.y
			})
		},
		onAtSelect(member) {
			let range = window.getSelection().getRangeAt(0)
			// 选中输入的 @xx 符
			range.setStart(this.focusNode, this.focusOffset - 1 - this.atSearchText.length)
			range.setEnd(this.focusNode, this.focusOffset)
			range.deleteContents()
			// 创建元素节点
			let element = document.createElement('SPAN')
			element.className = "at"
			element.dataset.id = member.userId;
			element.contentEditable = 'false'
			element.innerText = `@${member.aliasName}`
			range.insertNode(element)
			// 光标移动到末尾
			range.collapse()
			// 插入空格
			let textNode = document.createTextNode('\u00A0');
			range.insertNode(textNode)
			range.collapse()
			this.atSearchText = "";
			this.$refs.editBox.focus()
		},
		onSwitchReceipt() {
			this.isReceipt = !this.isReceipt;
		},
		createSendText() {
			let sendText = this.isReceipt ? "【回执消息】" : "";
			this.$refs.editBox.childNodes.forEach((node) => {
				if (node.nodeName == "#text") {
					sendText += this.html2Escape(node.textContent);
				} else if (node.nodeName == "SPAN") {
					sendText += node.innerHTML;
				} else if (node.nodeName == "IMG") {
					sendText += node.dataset.code;
				}
			})
			return sendText;
		},
		html2Escape(strHtml) {
			return strHtml.replace(/[<>&"]/g, function (c) {
				return {
					'<': '&lt;',
					'>': '&gt;',
					'&': '&amp;',
					'"': '&quot;'
				}[c];
			});
		},
		createAtUserIds() {
			let ids = [];
			this.$refs.editBox.childNodes.forEach((node) => {
				if (node.nodeName == "SPAN") {
					ids.push(node.dataset.id);
				}
			})
			return ids;
		},
		onEditorPaste(e) {
			let txt = e.clipboardData.getData('Text')
			if (typeof (txt) == 'string') {
				let range = window.getSelection().getRangeAt(0)
				let textNode = document.createTextNode(txt);
				range.insertNode(textNode)
				range.collapse();
			}
			let items = (e.clipboardData || window.clipboardData).items
			if (items.length) {
				for (let i = 0; i < items.length; i++) {
					if (items[i].type.indexOf('image') !== -1) {
						let file = items[i].getAsFile();
						this.sendImageFile = file;
						this.sendImageUrl = URL.createObjectURL(file);
					}
				}
			}
		},
		removeSendImage() {
			this.sendImageUrl = "";
			this.sendImageFile = null;
		},
		onImageSuccess(data, file) {
			let msgInfo = JSON.parse(JSON.stringify(file.msgInfo));
			msgInfo.content = JSON.stringify(data);
			msgInfo.receipt = this.isReceipt;
			this.$http({
				url: this.messageAction,
				method: 'post',
				data: msgInfo
			}).then((id) => {
				msgInfo.loadStatus = 'ok';
				msgInfo.id = id;
				this.isReceipt = false;
				this.$store.commit("insertMessage", msgInfo);
			})
		},
		onImageFail(e, file) {
			let msgInfo = JSON.parse(JSON.stringify(file.msgInfo));
			msgInfo.loadStatus = 'fail';
			this.$store.commit("insertMessage", msgInfo);
		},
		onImageBefore(file) {
			let url = URL.createObjectURL(file);
			let data = {
				originUrl: url,
				thumbUrl: url
			}
			let msgInfo = {
				id: 0,
				fileId: file.uid,
				sendId: this.mine.id,
				content: JSON.stringify(data),
				sendTime: new Date().getTime(),
				selfSend: true,
				type: 1,
				readedCount: 0,
				loadStatus: "loading",
				status: this.$enums.MESSAGE_STATUS.UNSEND
			}
			// 填充对方id
			this.fillTargetId(msgInfo, this.chat.targetId);
			// 插入消息
			this.$store.commit("insertMessage", msgInfo);
			// 会话置顶
			this.moveChatToTop();
			// 滚动到底部
			this.scrollToBottom();
			// 借助file对象保存
			file.msgInfo = msgInfo;
		},
		onFileSuccess(url, file) {
			let data = {
				name: file.name,
				size: file.size,
				url: url
			}
			let msgInfo = JSON.parse(JSON.stringify(file.msgInfo));
			msgInfo.content = JSON.stringify(data);
			msgInfo.receipt = this.isReceipt
			this.$http({
				url: this.messageAction,
				method: 'post',
				data: msgInfo
			}).then((id) => {
				msgInfo.loadStatus = 'ok';
				msgInfo.id = id;
				this.isReceipt = false;
				this.$store.commit("insertMessage", msgInfo);
			})
		},
		onFileFail(e, file) {
			let msgInfo = JSON.parse(JSON.stringify(file.msgInfo));
			msgInfo.loadStatus = 'fail';
			this.$store.commit("insertMessage", msgInfo);
		},
		onFileBefore(file) {
			let url = URL.createObjectURL(file);
			let data = {
				name: file.name,
				size: file.size,
				url: url
			}
			let msgInfo = {
				id: 0,
				sendId: this.mine.id,
				content: JSON.stringify(data),
				sendTime: new Date().getTime(),
				selfSend: true,
				type: 2,
				loadStatus: "loading",
				readedCount: 0,
				status: this.$enums.MESSAGE_STATUS.UNSEND
			}
			// 填充对方id
			this.fillTargetId(msgInfo, this.chat.targetId);
			// 插入消息
			this.$store.commit("insertMessage", msgInfo);
			// 会话置顶
			this.moveChatToTop();
			// 滚动到底部
			this.scrollToBottom();
			// 借助file对象透传
			file.msgInfo = msgInfo;
		},
		onCloseSide() {
			this.showSide = false;
		},
		onScrollToTop() {
			// 多展示10条信息
			this.showMinIdx = this.showMinIdx > 10 ? this.showMinIdx - 10 : 0;
		},
		onScroll(e) {
			let scrollElement = e.target
			let scrollTop = scrollElement.scrollTop
			if (scrollTop < 30) { // 在顶部,不滚动的情况
				// 多展示20条信息
				this.showMinIdx = this.showMinIdx > 20 ? this.showMinIdx - 20 : 0;
			}
		},
		showEmotionBox() {
			let width = this.$refs.emotion.offsetWidth;
			let left = this.$elm.fixLeft(this.$refs.emotion);
			let top = this.$elm.fixTop(this.$refs.emotion);
			this.$refs.emoBox.open({
				x: left + width / 2,
				y: top
			})
		},
		onEmotion(emoText) {
			// 保持输入框焦点
			this.$refs.editBox.focus();
			let range = window.getSelection().getRangeAt(0);
			// 插入光标所在位置
			range.setStart(this.focusNode, this.focusOffset)
			let element = document.createElement('IMG')
			element.className = "emo"
			element.dataset.code = emoText;
			element.contentEditable = 'true'
			element.setAttribute("src", this.$emo.textToUrl(emoText));
			// 选中元素节点
			range.insertNode(element)
			// 光标移动到末尾
			range.collapse()

		},
		showVoiceBox() {
			this.showVoice = true;
		},
		closeVoiceBox() {
			this.showVoice = false;
		},
		showVideoBox() {
			this.$store.commit("showChatPrivateVideoBox", {
				friend: this.friend,
				master: true
			});
		},
		showHistoryBox() {
			this.showHistory = true;
		},
		closeHistoryBox() {
			this.showHistory = false;
		},
		onSendVoice(data) {
			let msgInfo = {
				content: JSON.stringify(data),
				type: 3,
				receipt: this.isReceipt
			}
			// 填充对方id
			this.fillTargetId(msgInfo, this.chat.targetId);
			this.$http({
				url: this.messageAction,
				method: 'post',
				data: msgInfo
			}).then((id) => {
				msgInfo.id = id;
				msgInfo.sendTime = new Date().getTime();
				msgInfo.sendId = this.$store.state.userStore.userInfo.id;
				msgInfo.selfSend = true;
				msgInfo.status = this.$enums.MESSAGE_STATUS.UNSEND;
				msgInfo.readedCount = 0;
				this.$store.commit("insertMessage", msgInfo);
				// 会话置顶
				this.moveChatToTop();
				// 保持输入框焦点
				this.$refs.editBox.focus();
				// 滚动到底部
				this.scrollToBottom();
				// 关闭录音窗口
				this.showVoice = false;
				this.isReceipt = false;
				
			})
		},
		fillTargetId(msgInfo, targetId) {
			if (this.chat.type == "GROUP") {
				msgInfo.groupId = targetId;
			} else {
				msgInfo.recvId = targetId;
			}
		},
		sendMessage() {
			if (this.sendImageFile) {
				this.sendImageMessage();
			} else {
				this.sendTextMessage();
			}
			// 消息已读
			this.readedMessage()
		},
		sendImageMessage() {
			let file = this.sendImageFile;
			this.onImageBefore(this.sendImageFile);
			let formData = new FormData()
			formData.append('file', file)
			this.$http.post("/image/upload", formData, {
				headers: {
					'Content-Type': 'multipart/form-data'
				}
			}).then((data) => {
				this.onImageSuccess(data, file);
			}).catch((res) => {
				this.onImageSuccess(res, file);
			})
			this.sendImageFile = null;
			this.sendImageUrl = "";
			this.$nextTick(() => this.$refs.editBox.focus());
			this.scrollToBottom();
		},
		sendTextMessage() {
			let sendText = this.createSendText();
			if (!sendText.trim()) {
				return
			}
			this.$refs.editBox.cle
			let msgInfo = {
				content: sendText,
				type: 0
			}
			// 填充对方id
			this.fillTargetId(msgInfo, this.chat.targetId);
			// 被@人员列表
			if (this.chat.type == "GROUP") {
				msgInfo.atUserIds = this.createAtUserIds();
				msgInfo.receipt = this.isReceipt;
			}
			this.lockMessage = true;
			this.$http({
				url: this.messageAction,
				method: 'post',
				data: msgInfo
			}).then((id) => {
				msgInfo.id = id;
				msgInfo.sendTime = new Date().getTime();
				msgInfo.sendId = this.$store.state.userStore.userInfo.id;
				msgInfo.selfSend = true;
				msgInfo.readedCount = 0;
				msgInfo.status = this.$enums.MESSAGE_STATUS.UNSEND;
				this.$store.commit("insertMessage", msgInfo);
				// 会话置顶
				this.moveChatToTop();
			}).finally(() => {
				// 解除锁定
				this.lockMessage = false;
				this.scrollToBottom();
				this.resetEditor();
				this.isReceipt = false;
			});

		},
		deleteMessage(msgInfo) {
			this.$confirm('确认删除消息?', '删除消息', {
				confirmButtonText: '确定',
				cancelButtonText: '取消',
				type: 'warning'
			}).then(() => {
				this.$store.commit("deleteMessage", msgInfo);
			});
		},
		recallMessage(msgInfo) {
			this.$confirm('确认撤回消息?', '撤回消息', {
				confirmButtonText: '确定',
				cancelButtonText: '取消',
				type: 'warning'
			}).then(() => {
				let url = `/message/${this.chat.type.toLowerCase()}/recall/${msgInfo.id}`
				this.$http({
					url: url,
					method: 'delete'
				}).then(() => {
					this.$message.success("消息已撤回");
					msgInfo = JSON.parse(JSON.stringify(msgInfo));
					msgInfo.type = 10;
					msgInfo.content = '你撤回了一条消息';
					msgInfo.status = this.$enums.MESSAGE_STATUS.RECALL;
					this.$store.commit("insertMessage", msgInfo);
				})
			});
		},
		readedMessage() {
			if (this.chat.unreadCount == 0) {
				return;
			}
			this.$store.commit("resetUnreadCount", this.chat)
			if (this.chat.type == "GROUP") {
				var url = `/message/group/readed?groupId=${this.chat.targetId}`
			} else {
				url = `/message/private/readed?friendId=${this.chat.targetId}`
			}
			this.$http({
				url: url,
				method: 'put'
			}).then(() => { })
		},
		loadReaded(fId) {
			this.$http({
				url: `/message/private/maxReadedId?friendId=${fId}`,
				method: 'get'
			}).then((id) => {
				this.$store.commit("readedMessage", {
					friendId: fId,
					maxId: id
				});
			});
		},
		loadGroup(groupId) {
			this.$http({
				url: `/group/find/${groupId}`,
				method: 'get'
			}).then((group) => {
				this.group = group;
				this.$store.commit("updateChatFromGroup", group);
				this.$store.commit("updateGroup", group);

			});

			this.$http({
				url: `/group/members/${groupId}`,
				method: 'get'
			}).then((groupMembers) => {
				this.groupMembers = groupMembers;
			});
		},
		loadFriend(friendId) {
			// 获取对方最新信息
			this.$http({
				url: `/user/find/${friendId}`,
				method: 'get'
			}).then((friend) => {
				this.friend = friend;
				this.$store.commit("updateChatFromFriend", friend);
				this.$store.commit("updateFriend", friend);
			})
		},
		showName(msgInfo) {
			if (this.chat.type == 'GROUP') {
				let member = this.groupMembers.find((m) => m.userId == msgInfo.sendId);
				return member ? member.aliasName : "";
			} else {
				return msgInfo.sendId == this.mine.id ? this.mine.nickName : this.chat.showName
			}

		},
		headImage(msgInfo) {
			if (this.chat.type == 'GROUP') {
				let member = this.groupMembers.find((m) => m.userId == msgInfo.sendId);
				return member ? member.headImage : "";
			} else {
				return msgInfo.sendId == this.mine.id ? this.mine.headImageThumb : this.chat.headImage
			}
		},
		resetEditor() {
			this.sendImageUrl = "";
			this.sendImageFile = null;
			this.$nextTick(() => {
				this.$refs.editBox.innerHTML = "";
				this.$refs.editBox.focus();
			});
		},
		scrollToBottom() {
			this.$nextTick(() => {
				let div = document.getElementById("chatScrollBox");
				div.scrollTop = div.scrollHeight;
			});
		}
	},
	computed: {
		mine() {
			return this.$store.state.userStore.userInfo;
		},
		title() {
			let title = this.chat.showName;
			if (this.chat.type == "GROUP") {
				let size = this.groupMembers.filter(m => !m.quit).length;
				title += `(${size})`;
			}
			return title;
		},
		messageAction() {
			return `/message/${this.chat.type.toLowerCase()}/send`;
		},
		unreadCount() {
			return this.chat.unreadCount;
		}
	},
	watch: {
		chat: {
			handler(newChat, oldChat) {
				if (newChat.targetId > 0 && (!oldChat || newChat.type != oldChat.type ||
					newChat.targetId != oldChat.targetId)) {
					if (this.chat.type == "GROUP") {
						this.loadGroup(this.chat.targetId);
					} else {
						this.loadFriend(this.chat.targetId);
						// 加载已读状态
						this.loadReaded(this.chat.targetId)
					}
					// 滚到底部
					this.scrollToBottom();
					this.showSide = false;
					// 消息已读
					this.readedMessage()
					// 初始状态只显示30条消息
					let size = this.chat.messages.length;
					this.showMinIdx = size > 30 ? size - 30 : 0;
					// 重置输入框
					this.resetEditor();
					// 复位回执消息
					this.isReceipt = false;
				}
			},
			immediate: true
		},
		unreadCount: {
			handler(newCount, oldCount) {
				if (newCount > 0) {
					// 拉至底部
					this.scrollToBottom();
				}
			}
		}
	},
	mounted() {
		let div = document.getElementById("chatScrollBox");
		div.addEventListener('scroll', this.onScroll)
	}
}
</script>

<style lang="scss">
.chat-box {
	position: relative;
	width: 100%;
	background: #f8f8f8;
	border: #dddddd solid 1px;

	.el-header {
		padding: 5px;
		background-color: white;
		line-height: 50px;
		font-size: 20px;
		font-weight: 600;
		border: #dddddd solid 1px;

		.btn-side {
			position: absolute;
			right: 20px;
			line-height: 60px;
			font-size: 22px;
			cursor: pointer;

			&:hover {
				font-size: 30px;
			}
		}
	}

	.im-chat-main {
		padding: 0;
		border: #dddddd solid 1px;

		.im-chat-box {
			>ul {
				padding: 0 20px;

				li {
					list-style-type: none;
				}
			}
		}
	}

	.im-chat-footer {
		display: flex;
		flex-direction: column;
		padding: 0;
		border: #dddddd solid 1px;

		.chat-tool-bar {

			display: flex;
			position: relative;
			width: 100%;
			height: 40px;
			text-align: left;
			box-sizing: border-box;
			border: #dddddd solid 1px;
			padding: 2px;

			>div {
				font-size: 22px;
				cursor: pointer;
				color: #333333;
				line-height: 34px;
				width: 34px;
				height: 34px;
				text-align: center;
				border-radius: 3px;

				&:hover {
					color: black;
				}

				&.chat-tool-active {
					background: #ddd;
				}
			}
		}


		.send-content-area {
			position: relative;
			display: flex;
			flex-direction: column;
			height: 100%;
			background-color: white !important;



			.send-text-area {
				box-sizing: border-box;
				padding: 5px;
				width: 100%;
				flex: 1;
				resize: none;
				font-size: 16px;
				color: black;
				outline-color: rgba(83, 160, 231, 0.61);

				text-align: left;
				line-height: 30 px;

				&:before {
					content: attr(placeholder);
					color: gray;
				}

				.at {
					color: blue;
					font-weight: 600;
				}

				.receipt {
					color: darkblue;
					font-size: 15px;
					font-weight: 600;
				}

				.emo {
					width: 30px;
					height: 30px;
					vertical-align: bottom;
				}
			}

			.send-image-area {
				text-align: left;
				border: #53a0e7 solid 1px;

				.send-image-box {
					position: relative;
					display: inline-block;

					.send-image {
						max-height: 180px;
						border: 1px solid #ccc;
						border-radius: 2%;
						margin: 2px;
					}

					.send-image-close {
						position: absolute;
						padding: 3px;
						right: 7px;
						top: 7px;
						color: white;
						cursor: pointer;
						font-size: 15px;
						font-weight: 600;
						background-color: #aaa;
						border-radius: 50%;
						border: 1px solid #ccc;
					}
				}

			}

			.send-btn-area {
				padding: 10px;
				position: absolute;
				bottom: 0;
				right: 0;
			}
		}

	}

	.chat-group-side-box {
		border: #dddddd solid 1px;
		animation: rtl-drawer-in .3s 1ms;
	}
}</style>